How to create Type Library (DLL) in C++ to add as reference for VB

[Don_Juan]

Hiya to all GURUS out there

Could anyone please advice me in how to create a Type Library using Visual C++ so that I could add it into a Visual Basic Project as a reference?

In fact, a step-by-step guide would do. And as an example, an extremely simple Type Library would suffice as demonstration.

Thanks in advance

[Lev FatMan]

There are many kinds of DLL you can make ,
The most automated way as I see it is using COM dll.

In VC++ you just make a new ATL COM projects , choose DLL and add your methods and Properties.

Thats is the general Idea.
If you know C++ well you can jsut write a DLL and import it in the VB GUI.


FatMan

[Clearcode]

There is also a MKTYPLIB utility.
You create a .def file and run this and it makes the .tlb file.

It's documented at http://msdn.microsoft.com

HTH,
Duncan

-------------------------------------------------
Ex. Datis: Duncan Jones
Merrion Computing Ltd
http://www.merrioncomputing.com

[gambit]

hi,

I have tried your method.
But I have error message.
How the def file look like?
Is it same as any DLL export file?

thank you!

[Clearcode]

No, you need to write up a type lib description in something called the "Object Description language".
The best explanation is at http://msdn.microsoft.com/library/books/inole/S111F.HTM

HTH,
Duncan

-------------------------------------------------
Ex. Datis: Duncan Jones
Merrion Computing Ltd
http://www.merrioncomputing.com

[gambit]

hi

I have successfully created a DLL in VC++ and added into VB GUI by using the "add reference".
However when I used the "Object Browser" to view it.
I can only see my class but not its member function.
Do you know what the problem?
I create the function in VC++ by using "add member function".

thank you!